Not loaded
StreetLight P4
Data obtained irregularly from Centerpoint. Data must be refreshed by request. Last updated: 3/2020
Houston and Harris County publish a huge amount of open data, scattered across dozens of portals nobody tracks. This catalog lists every dataset we've found in one place, whether or not it's loaded into the explorer. Know a source we're missing? Add it, and it's shared with everyone.
| Source | What it is | Items | Loaded |
|---|---|---|---|
| Harris County ArcGIS Online services.arcgis.com |
One organization shared by county departments, precincts and staff. Mixes authoritative layers (fire stations, parks, crashes) with many working copies and one-off maps; review before use. | 3,112 | 16 |
| Rice University ArcGIS Online services.arcgis.com |
Research and class projects. Houston gems (HCFCD buyout lots, draft 2026 FEMA flood map, historical census, redlining) among worldwide student work. Research copies of agency data need permission before reuse. | 2,888 | 0 |
| Houston Advanced Research Center (HARC) ArcGIS Online services2.arcgis.com |
Environmental and regional research layers; source of the 2021 city cool-center list. | 528 | 1 |
| City of Houston GIS (ArcGIS Hubs) geohub.houstontx.gov |
Two Hub sites (Public Works geohub, citywide mycity) over several ArcGIS servers. Official. | 314 | 119 |
| Harris County Flood Control District ArcGIS Online services2.arcgis.com |
High-water marks, floodplains, projects, acreage by program. Source of the storm HWM layers. | 265 | 4 |
| City of Houston Open Data (data.houstontx.gov) data.houstontx.gov |
Separate from the GIS hubs. Mostly spreadsheets; finance (checkbook, payroll, budget) and census stay current, much else frozen since a 2023 migration. | 94 | 0 |
| U.S. Census Bureau api.census.gov |
4 | 3 | |
| FEMA (OpenFEMA and National Flood Hazard Layer) www.fema.gov |
4 | 3 | |
| U.S. Environmental Protection Agency data.epa.gov |
2 | 2 | |
| Centers for Disease Control and Prevention data.cdc.gov |
2 | 2 | |
| Texas Commission on Environmental Quality www.tceq.texas.gov |
2 | 1 | |
| Texas Water Development Board www.twdb.texas.gov |
1 | 1 | |
| U.S. Geological Survey water data waterservices.usgs.gov |
1 | 0 | |
| City of Houston 311 public data extracts www.houstontx.gov |
1 | 1 | |
| METRO (Harris County transit) www.ridemetro.org |
1 | 0 | |
| Stanford Open Policing Project openpolicing.stanford.edu |
1 | 0 | |
| TxDOT Crash Records Information System (CRIS) cris.dot.state.tx.us |
1 | 0 |
1,550 matches (likely staff working copies and non-Houston research layers hidden)
Data obtained irregularly from Centerpoint. Data must be refreshed by request. Last updated: 3/2020
Data obtained irregularly from Centerpoint. Data must be refreshed by request. Last updated: 3/2020
Harris County Super Fund Sites
CDC's Social Vulnerability Index 2SVI) is a tool, created by the Geospatial Research, Analysis & Services Program (GRASP), to help public health officials and...
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Feature layer generated from running the Generate Travel Areas analysis tool.
Harris County, TX Voting outreach turfs 2022
This Voting Precinct (polygon) dataset created to represented and validate representative jurisdictions within Harris County Texas.
Cartography and spatial analysis; inclusion in the REDAPPL redistricting system and the TREAD mapping and reporting system of the Texas Legislative Council.
School campus data for school year 2024 to 2025 taken from an export of the AskTED directory (https://tealprod.tea.state.tx.us/Tea.AskTed.Web/Forms/Home.aspx). Data has been modified to show commissioner precinct for schools within Harris County.
Cartography and spatial analysis; inclusion in the REDAPPL redistricting system and the TREAD mapping and reporting system of the Texas Legislative Council.
Harris County Road Log for cataloging managed and unmanaged road segments.
Harris County Tire Sites
Business Analyst Tyler James layers
Business Analyst Tyler James layers
Business Analyst Tyler James layers
Business Analyst Tyler James layers
Business Analyst Tyler James layers
Found Houston or Harris County open data we don't list? A portal, a map service, a spreadsheet on an agency page, a research dataset? Tell us where it is. Reviewed suggestions are added to the catalog for everyone.